Conditionally required is not working if more than one control by fields

I see the same issue on 4.0.0-alpha3

Thanks for ther report and the efforts to geive a detailed report. But there is a contradiction in the report. At least from my read.

Now Image field is required if A or B or both is selected.
Required condition doesn't work properly. Required check works if both selected or with one field (which is last in dependencies array).

Please elaborate on the way it works or not works and what you have awaited to happen.

Apart from that: I decreased the issue priority. Descriptions of the Priority → and Status → values can be found in the Drupal project issues → documentation.